Mitt Romney, the 2012 Republican presidential nominee and former governor of Massachusetts, officially announced Friday morning that he is running for the Senate seat being vacated by seven-term GOP Sen. Orrin Hatch of Utah.

Romney tweeted a video announcement, after delaying a planned launch on Thursday in the wake of the deadly mass school shooting in Parkland, Fla.

Romney, who spoke out forcefully against Trump during the 2016 presidential campaign, blasted Washington and took veiled swipes at the president in the video.

We are living through an amazing moment — a cultural shift spurred by the #MeToo and #TimesUp movement that is bringing with it a rising awareness among men (some, at least) of the abuse of, or blindness to, the power imbalance at the bedrock of our culture, and of the abuse and misconduct that imbalance breeds toward the women in our lives, at work or otherwise.

As the news broke of a school shooting in Parkland, Fla., on Wednesday, hundreds of Twitter accounts believed to be under Russian sway pivoted.

Many had been tweeting about places like Syria and Ukraine — countries where Russia is seeking to strengthen its influence. Suddenly the accounts shifted to hashtags like #guncontrol, #guncontrolnow and #gunreformnow. Tweets mentioning Nikolas Cruz, the name of the shooting suspect, spiked.

During a fellowship to Harvard, writer Tayari Jones spent months and months studying the intersection of race and criminal justice. She learned a lot about the American criminal justice system. She knew all the grim statistics. But she was still searching for the inspiration for a novel she'd hope to write: one that involved an individual's encounter with the system, and the subsequent ripples that touch that person's community.

Then, while she was in Atlanta visiting her mother, she found what she needed during a routine trip to the shopping mall.

Next month, several chain supermarkets in the U.K. will stop selling energy drinks to customers under 16. Anyone looking to buy a soft drink with more than 150 mg of caffeine per liter — a limit targeting drinks like Monster and Red Bull — will need to present an ID.